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Circadia Circa-Shield – Mineral Sunscreen SPF 30 Ingredients Explained

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Updated on February 12, 2024 Submitted by KateWinegar

Overview

What it is

Sunscreen with 35 ingredients that contains exfoliants and SPF

Suited For

It has ingredients that are good for fighting acne, anti aging, dry skin, sensitive skin, reducing pores and dark spots

Free From

It doesn't contain any harsh alcohols, parabens, silicones or sulfates

Fun facts

Circadia is from United States.

We independently verify ingredients and our claims are backed by peer-reviewed research. Does this product need an update? Let us know.

You should know

Here's our breakdown of the notable ingredients, benefits, and concerns we determined from the ingredients in this product. Click any item to learn more.

Notable Ingredients

Mineral UV Filter
Exfoliators

Benefits

Hydrating (2)
Redness Reducing
Reduces Irritation
Reduces Large Pores
Anti-Aging (2)
Dark Spots
Acne Fighting (2)

Concerns

May Worsen Oily Skin
Rosacea
Eczema

Ingredient Info

Click any item below to learn more and view relevant ingredients.
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free
spf rating
30

Ingredients Overview

Here's our quick-to-read summary of the ingredients in this product. Keep scrolling if you'd like to learn more about what each ingredient does!
Ingredient
Features
1
Emollient, Skin Conditioning, Solvent
2
Cosmetic Colorant, Skin Protecting, UV Absorber, UV Filter
1 / 0
Mineral UV Filter IconNon-Reef-Safe IconHelps fight Acne Icon
3
Masking, Perfuming, Skin Conditioning
0-2 / 0
Fragrance IconOil IconNot safe for Fungal Acne Icon
4
Emulsifying
Not safe for Fungal Acne Icon
5
Emollient, Masking, Skin Conditioning, Solvent
0 / 0
6
Solvent
7
Abrasive, Absorbent
Exfoliant IconMay worsen Eczema IconMay worsen Rosacea Icon
8
Skin Conditioning
9
Skin Conditioning
Oil IconNot safe for Fungal Acne Icon
10
Emollient, Skin Conditioning
0-2 / 0
Oil IconHelps hydrate Dry Skin IconNot safe for Fungal Acne Icon
11
Masking, Perfuming
Fragrance Icon
12
Skin Conditioning
13
Emulsifying
Not safe for Fungal Acne Icon
14
15
Emollient, Skin Conditioning
Not safe for Fungal Acne Icon
16
Emollient, Skin Conditioning
3 / 0
Oil IconNot safe for Fungal Acne Icon
17
Emulsifying
Not safe for Fungal Acne Icon
18
Masking, Perfuming
Fragrance Icon
19
Skin Conditioning
20
Skin Conditioning
21
Emulsifying
4 / 0
May worsen Oily Skin IconNot safe for Fungal Acne Icon
22
Emollient
23
Absorbent, Skin Conditioning
Helps with Anti-Aging IconGood for Dark Spots Icon
24
Masking, Skin Conditioning
25
Antimicrobial, Antioxidant, Astringent, Emollient, Humectant, Masking, Skin Conditioning, Skin Protecting, Tonic
Antioxidant IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Minimizing Pores IconHelps with Anti-Aging IconHelps fight Acne Icon
26
Skin Conditioning, Skin Protecting, Smoothing
27
Masking
EU Allergen Icon
28
Emollient, Skin Conditioning, Smoothing, Soothing
Helps hydrate Dry Skin Icon
29
Masking, Skin Conditioning
30
Antimicrobial, Masking, Skin Conditioning
31
Masking, Perfuming, Skin Conditioning
Fragrance Icon
32
Antimicrobial, Astringent
33
Masking, Moisturising, Perfuming, Skin Conditioning, Soothing
Fragrance Icon
34
Masking, Tonic
35
Perfuming
Fragrance IconMay cause irritation IconEU Allergen Icon

Ingredients Explained

This product contains 35 ingredients. Click on any ingredient to learn more about it
1
What it does: Emollient, Skin Conditioning, Solvent

We don't have a description for C14-22 Alkane.

2
What it does: Cosmetic Colorant, Skin Protecting, UV Absorber, UV Filter
Community Rating: Liked

Zinc Oxide is a mineral broad-spectrum UV filter; it is the broadest UVA and UVB reflector approved by the FDA. While it is most commonly man-made for cosmetics, it can naturally occur in zincite, a rare mineral.

Today, traditional and nano-sized zinc oxide can be found in beauty products. Nano-sized zinc oxide can enhance a product's UV protection. While it is not believed to have a negative effect on skin, nano-zinc oxide can be harmful to coral reefs.

More about harmful reef ingredients here.

Zinc Oxide also has antibacterial and calming properties. It is not water soluble.

Zinc has been used throughout history as an ingredient in paint and medicine. An Indian text from 500BC is believed to list zinc oxide as a salve for open wound. The Ancient Greek physician Dioscorides has also mentioned the use of zinc as an ointment in 1AD.

Learn more about Zinc Oxide
3
What it does: Masking, Perfuming, Skin Conditioning
Community Rating: Very Disliked

Olea Europaea Fruit Oil is the fixed oil obtained from the ripe fruit of the Olive. In other words - olive oil.

The primary contents of olive oil are glycerides of the fatty acids linoleic, oleic and palmitic.

Olive oil also contains antioxidants such as Vitamin E. Antioxidants may help reduce signs of aging by fighting unstable free-radical molecules. It also contains Vitamins A (retinol), D, and K.

The squalene in olive oil makes it a great emollient. Emollients help soothe and soften your skin by trapping moisture in. This makes olive oil a great skin moisturizer.

Studies show olive oil to have antibacterial and antifungal properties in low concentrations. Another study found olive oil irritated sensitive oily skin. We always recommend speaking with a professional about using this ingredient in your routine.

Learn more about Olea Europaea Fruit Oil
4
What it does: Emulsifying
Community Rating: Very Disliked

Sorbitan Olivate is created from the fatty acids in olive oil and sorbitol.

Sorbitan Olivate is an oil in water emulsifier. It helps stabilize a product by preventing oils and waters from separating. Sorbitan Olivate also helps hydrate the skin.

Manufacturers sell sorbitan olivate under the name OliveM 1000. OliveM 1000 a multifunctional ingredient. It is self-emulsifying. According to a manufacturer, OliveM 1000 does not disrupt natural skin biome.

Learn more about Sorbitan Olivate
5
What it does: Emollient, Masking, Skin Conditioning, Solvent

Diisopropyl Adipate comes from isopropyl alcohol and Adipic Acid.

It is a solvent and emollient. As a solvent, it is used to help other ingredients dissolve into the solution. It is also often used to soften hard ingredients.

Emollients help hydrate the skin by creating a thin barrier. This thin barrier prevents moisture from escaping.

Learn more about Diisopropyl Adipate
6
What it does: Solvent

C9-12 Alkane is synethically created using alkanes, or paraffins. It is added to products as a solvent. This means its main purpose is to help dissolve ingredients and create even texture.

7
What it does: Abrasive, Absorbent
Community Rating: Disliked

Silica is a mineral naturally found in our skin. It helps to thicken and smooth the texture of a product. It also acts as an agent for other ingredients by increasing the absorption of other ingredients into the skin.

Silica is often used for absorption and can help reduce shine when products are applied. Silica occurs in naturally in materials like clay and sandstone, and it can also be produced synthetically.

Silica is present naturally within the skin during collagen production and when reducing inflammation.

Learn more about Silica
8
What it does: Skin Conditioning

Oryza Sativa Bran Cera is wax from the outer layer of a rice kernel. It is a byproduct of milling rice, or the operation to produce a whole grain rice product.

9
What it does: Skin Conditioning
Community Rating: Very Disliked

Vegetable oil is created from seeds or parts of plants.

The term "vegetable Oil" is an umbrella term. It can refer to a variety of vegetable oils and/or blends of: sunflower oil, soybean oil, olive oil, coconut oil, palm oil, and more.

This ingredient is an emollient. Emollients help soothe and soften the skin. They do this by creating a protective film on your skin. This barrier helps trap moisture and keeps your skin hydrated. Emollients may be effective at treating dry or itchy skin.

Due to the differences in vegetables, the benefits may vary.

Learn more about Vegetable Oil
10
What it does: Emollient, Skin Conditioning
Community Rating: Mixed

This ingredient is the fixed oil extracted from seeds of the desert shrub Jojoba. It is more commonly known as jojoba oil. The seed oil is liquid wax ester from the plant. It is non-comedogenic.

Jojoba oil does not contain fragrance and has many fatty-acids, making it a great soothing ingredient. Jojoba contains Vitamin E, a great moisturizing ingredient. Vitamin E is also an antioxidant. Antioxidants help protect your skin against free-radical damage. This may help in anti-aging.

Jojoba seed oil is a humectant, meaning it helps draw moisture from the air. This helps keep your skin hydrated.

While jojoba has antibacterial properties, it is only able to kill some bacteria. It has also been shown to help in wound healing. Indigenous cultures have used jojoba as a moisturizer and to help treat burns.

It is found to be similar to natural human skin sebum, so it has a great effect on dry skin. Jojoba oil may even help with regulating sebum production.

Although jojoba oil is non-comedogenic, we recommend speaking with a professional about using this ingredient if you have any concerns.

Jojoba oil may not be fungal acne safe. We recommend speaking with a professional if you have any concerns.

Jojoba is native to the southwestern US.

Learn more about Simmondsia Chinensis Seed Oil
11
What it does: Masking, Perfuming
Community Rating: Liked

Curcuma Longa Root Extract is from the spice, turmeric. Besides being a healthy and delicious spice, turmeric also has plenty of skincare benefits. It has anti-inflammatory, antioxidant, and anti-microbial properties.

Turmeric contains curcumin, an antioxidant. Antioxidants help neutralize unstable free-radical molecules. Free-radical molecules may damage your skin's cells and DNA. Curcumin may help with anti-aging.

Curcumin also has anti-inflammatory properties. It can help soothe skin and reduce irritation. On top of that, curcumin has been shown to help prevent hyperpigmentation from sun damage.

The anti-microbial property of turmeric can make it effective in treating acne. It has also been shown to help regulate the production of sebum.

Learn more about Curcuma Longa Root Extract
12
What it does: Skin Conditioning
Community Rating: Mixed

Saccharomyces Ferment is created from fermenting and filtering saccharomyces, a group of fungus that includes yeasts. It is a humectant and helps hydrate the skin.

This ingredient contains amino acids, beta-glucan, and vitamins. Beta-glucan is a potent antioxidant and may help with the signs of aging.

13
What it does: Emulsifying

Polyglyceryl-6 Olivate isn't fungal acne safe.

14
What it does:
Community Rating: Disliked

Triethoxycaprylylsilane is a silicone used to bind and stabilize ingredients.

As an emulsifier, it helps prevent ingredients from separating. This can help elongate the shelf life of products.

Triethoxycaprylylsilane is often used to coat mineral sunscreens ingredients to help give a better feel. It also helps reduce oxidative stress in sunscreens.

Learn more about Triethoxycaprylylsilane
15
What it does: Emollient, Skin Conditioning
Community Rating: Very Disliked

Coco-Caprylate/Caprate is created from fatty coconut alcohol, caprylic acid, and capric acid.

It is a lightweight emollient. Emollients create a thin barrier on the skin to trap moisture in. This helps keep your skin hydrated and soft.

Once applied, Coco-Caprylate/Caprate is absorbed quickly and leaves a silky feel.

Coco-Caprylate/Caprate may not be fungal acne safe.

Learn more about Coco-Caprylate/Caprate
16
What it does: Emollient, Skin Conditioning
Community Rating: Very Disliked

Glycine Soja Oil comes from the soybean. Glycine Soja is native to eastern Asia.

Soybean oil is an emollient. It is rich in antioxidants and fatty acids including palmitic, stearic, oleic, and linoleic acids.

As an emollient, the fatty acids in soybean oil helps keep your skin soft and hydrated. It does so by creating a film on top that traps moisture in.

Soybean oil is also rich in vitamin E, a potent antioxidant. Vitamin E is also anti-inflammatory and provides a soothing effect.

Studies show soy may help fade hyperpigmentation from UVB. It does so by disrupting the melanin process from UVB induced skin inflammation.

This ingredient may not be malassezia folliculitis, or fungal-acne, safe.

Soybeans are rich in proteins and are part of the legume family. Foods made with soybeans include tofu, soymilk, edamame, miso, and soy sauce.

Learn more about Glycine Soja Oil
17
What it does: Emulsifying
Community Rating: Disliked

Polyhydroxystearic Acid is a soft wax made from castor oil.

It is is a texture thickener, emulsifier, and film-former. Emulsifiers prevent ingredients from separating, such as oils and waters.

Polyhydroxystearic Acid may not be fungal acne safe.

Learn more about Polyhydroxystearic Acid
18
What it does: Masking, Perfuming
Community Rating: Disliked

Triethyl Citrate is a fragrance.

19
What it does: Skin Conditioning
Community Rating: Very Disliked

This ingredient comes from a fatty acid (lauric acid) and amino acid (lysine). It is used to add a silky feel to cosmetics.

According to a manufacturer, its fatty acid base leaves a silky feeling on the skin. It also has emollient properties because of this. Emollients help soften skin by preventing water from evaporating.

Lauroyl lysine is barely soluble in water.

Learn more about Lauroyl Lysine
20
What it does: Skin Conditioning

We don't have a description for Bis(Cyano Butylacetate) Anthracenediylidene.

21
What it does: Emulsifying
Community Rating: Very Disliked

Polyglyceryl-3 Diisostearate is an emulsifer and emollient. It comes from Isostearic Acid and Polyglycerin-3.

As an emulsifier, it helps stabilize products by preventing oils and water from separating.

This ingredient may not be Malassezia folliculitis, or fungal acne safe.

Learn more about Polyglyceryl-3 Diisostearate
22
What it does: Emollient
Community Rating: Loved

We don't have a description for Oryza Sativa Germ Extract.

23
What it does: Absorbent, Skin Conditioning
Community Rating: Mixed

Oryza Sativa Extract comes from the rice grain, Oryza sativa. Rice extract has wound healing, antioxidant, anti-inflammatory, and hydrating properties.

Rice grains contain numerous antioxidants which may help with anti-aging, such as vitamin E. Antioxidants help stabilize free-radical molecules. Unstable free-radical molecules may damage your skin cells and accelerate signs of aging.

A study from 2002 found rice to help increase the rate of wound healing. The same study found an improvement of skin barrier function in the patients after taking rice baths.

Numerous in-vitro studies have found rice water to help decrease sun damage by increasing collagen production and inhibiting the process of tyrosinase.

Long story short- tyrosinase is an enzyme that controls melanin production. Our bodies start producing melanin (AKA tanning) when exposed to UV radiation to protect against damage. Rice water is found to partially block this process.

Though more research is needed on rice's ability to help with UV protection, recent studies seem promising.

Wondering why rice is hydrating? The protein in rice have emollient properties. Emollients create a barrier on the skin to trap moisture in, keeping your skin moisturized.

Some rice extract may have mildly-exfoliating properties. These are mainly limited to Oryza Sativa (Rice) Bran and Oryza Sativa (Rice) Germ Powder.

This rice was first cultivated in China over 10,000 years ago. Many cultures throughout Asia have used rice water on skin and hair for centuries.

Learn more about Oryza Sativa Extract
24
What it does: Masking, Skin Conditioning
Community Rating: Mixed

Caprylic/Capric Triglyceride is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.

Within a product, Caprylic Triglyceride can thicken the product and make spreadability easier by dissolving clumping compounds. An added benefit of Caprylic Triglyceride is its antioxidant properties.

Caprylic Triglyceride is made by combining glycerin with coconut oil, forming a clear liquid. Caprylic Triglyceride has not been found to be toxic for human use in concentrations under 50%.

While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this.

Learn more about Caprylic/Capric Triglyceride
25
What it does: Antimicrobial, Antioxidant, Astringent, Emollient, Humectant, Masking, Skin Conditioning, Skin Protecting, Tonic
Community Rating: Loved

Camellia Sinensis Leaf Extract is derived from the leaves of the tea plant. Black tea, green tea, and oolong tea are all harvested from this plant.

Camellia Sinensis Leaf Extract has many benefits. It contains polyphenols, a strong antioxidant. Antioxidants help fight off free-radical molecules that damage skin cells. The antioxidants in green tea neutralize free-radicals from the sun. This gives the skin some extra UV protection, but should not replace sunscreen.

Many components of tea have anti-inflammatory properties. Polyphenols and L-theanine help soothe the skin and reduce irritation. L-theanine is an amino acid that makes up most of the amino acids found in tea leaves. The caffeine in Camellia Sinensis Leaf Extract helps calm inflamed blood vessels.

Camellia Sinensis Leaf Extract also contains Vitamin Bs, linoleic acid, magnesium, calcium, iron, and zinc.

Camellia Sinensis Leaf Extract also has antimicrobial properties.

Research has shown both drinking Camellia Sinensis Leaf Tea and applying it to the skin can help boost skin elasticity and hydration. Studies also show using tea extract may reduce sebum, or oil, production.

Learn more about Camellia Sinensis Leaf Extract
26
What it does: Skin Conditioning, Skin Protecting, Smoothing
Community Rating: Liked

Vanilla Planifolia Fruit Extract comes from the vanilla orchid native to central America. It is a skin-soothing ingredient.

This ingredient is skin-soothing and contains polyphenols that give it antioxidant properties.

This ingredient is not known to sensitize or irritate skin (unlike Vanilla Tahitensis).

Vanilla tahitensis has shown to irritate skin in low amounts!

Learn more about Vanilla Planifolia Fruit Extract
27
What it does: Masking

We don't have a description for Linalyl Acetate.

28
What it does: Emollient, Skin Conditioning, Smoothing, Soothing
Community Rating: Liked

Fucus Vesiculosus Extract is derived from a type of brown algae.

Algae is an informal term for a group of aquatic organisms that can photosynthesize. It is estimated there are at least 30,000 types of Algae.

Fucus Vesiculosus Extract contains antioxidants. Antioxidants help fight free-radicals. Free-radicals are molecules that may damage your skin cells, such as pollution.

Fucus Vesiculosus Extract is also rich in sodium, potassium, and amino acids.

Many different types of algae have different benefits.

Learn more about Fucus Vesiculosus Extract
29
What it does: Masking, Skin Conditioning

We don't have a description for Salvia Officinalis Flower/Leaf/Stem Extract.

30
What it does: Antimicrobial, Masking, Skin Conditioning
Community Rating: Mixed

Rosmarinus Officinalis Leaf Extract comes from rosemary. Rosemary is native to the Mediterranean.

While Rosmarinus Officinalis Leaf Oil can be volatile due to its fragrant properties, this component is usually removed in the leaf extract.

Rosemary Leaf Extract can help protect your skin against damage from free-radical molecules. It contains many antioxidants such as rosmarinic acid and caffeic acid. Rosemarinic acid has been found to help soothe skin conditions such as eczema and acne.

Learn more about Rosmarinus Officinalis Leaf Extract
31
What it does: Masking, Perfuming, Skin Conditioning

Lavandula Angustifolia Flower/Leaf/Stem Extract is a fragrance.

32
What it does: Antimicrobial, Astringent

We don't have a description for Salvia Triloba Leaf Extract.

33
What it does: Masking, Moisturising, Perfuming, Skin Conditioning, Soothing

Jasminum Officinale Flower/Leaf Extract is a fragrance.

34
What it does: Masking, Tonic
Community Rating: Mixed

Rosa Damascena Flower Extract is from the Damask rose.

The Damask Roses' petals have been found to help sooth skin. The petals also contain antioxidant compounds.

Rosa Damascena Flower Extract is used as a tonic. Tonics are used to remove soap residues. They also help moisturize the skin.

Learn more about Rosa Damascena Flower Extract
35
What it does: Perfuming
Community Rating: Very Disliked

Linalool is a fragrance and helps add scent to products. It's derived from common plants such as cinnamon, mint, citrus, and lavender.

Linalool has the same effect as Limonene when exposed to air. Oxidized linalool can cause allergies and skin sensitivity.

Linalool has a scent that is floral, spicy tropical, and citrus-like.

Learn more about Linalool
Embed Ingredients

Here's what our community thinks of the 35 ingredients in this product ✨

17% are loved or liked
17% have mixed ratings
34% are disliked or very disliked
31% have no rating yet

When to use

Here's some more info on how this product is used by our community.

Directions

Apply liberally to skin 15 minutes before sun exposure. Use a water resistant sunscreen if swimming or sweating. Reapply at least every 2 hours.

Apply liberally to skin 15 minutes before sun exposure. Use a water resistant sunscreen if swimming or sweating. Reapply at least every 2 hours.

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The data we've presented on this page has been verified by a member of the SkinSort Team.

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